Octarock with an oct up switch.

[kristopher]

Build Rating

3.00 star(s)

If you decide to build the Octarock, with a switch to disengage the upper octave, put it in a tall enclosure. I used a 1590bb. The jacks are as high as possible, and I taped the area where the input/output can rub the Pcb. If the jacks were lower, then the components and switches get rubbed, I think. I had it in and out of the enclosure a dozen times. Most of the holes are bigger to allow some wiggle, and are barely covered by the washers. I messed up on the 9v jack location. I had to notch the back plate. No big deal. I’m happy it all fit.

Also, I had to wait for the LM348 to be delivered. So I tried the circuit without an IC in there. It works, but without the upper octave. I plopped a TL074?? in there and it worked, but not a smooth(?) as the LM348.

The switch mod was recently discussed in this thread: https://forum.pedalpcb.com/threads/octarock-additional-switches.18966/

I used a dpdt foot switch and I’m glad I did. Being able to pop the upper octave out is fantastic. If you have an Octarock, I suggest it. I plan on doing a shootout with the Octron, because I have one. It has a TL084CN in it. I hope an I phone recording will suffice. I’ll get to it tomorrow. So stay tuned.

 

[kristopher]

Here’s another Octarock. With the second switch to disengage the upper octave. But this one is in the taller enclosure. And It’s labeled, cause I will be selling this one to a friend.

 

[xefned]

They both look great dude. Congrats on enduring it to completion. Humans win!

Did you remove the toggle switches' inner nuts and washers? I find that gives some essential extra room.

Looking forward to your phone demos!

 

[kristopher]

Yes. I did remove the toggle switch washers. In both builds.
Having the small 9mm pots helped with space too. Here’s a photo of the board and off-board pots, and the guts.
I’m thinking I may build a third Octarock, because the second wasn’t perfect. Neither was the first. The third bowl of porridge should be just right.
I was over confident when I drilled the enclosure, and I should’ve measured THRICE! There is about four mm’s of wasted space between the pcb, and the upper area of the enclosure. The 3pdt switches could’ve had more room. Anyway. Just a bit of OCD. Obviously I’ll post a third build if I do it.
And I do apologize for not getting a demo posted. Life gets in the way.
Go Humans!